Five-Letter Words

PHPHT – This one presents a troubling case. Its playability appears to be legitimate, but its definition remains elusive. As far as I can tell, it's either, like “pht,” an interjection expressing mild anger or annoyance, or a shortened version of phenolphthalein (pronounced fee-nawl-thal-een), which, as we all know, is a colorless crystalline compound used in medicine as a laxative and chemistry as an indicator.

Six-Letter Words

CRWTHS – More than one crwth.

TSKTSK – See “tsk” above. Oh, for shame.

Seven-Letter Words

TSKTSKS – See “tsk” and its many variations above. Tsktsks is the longest word in the English language with no vowels but its play in WWF is only possible should you elect to use a blank tile as the second ‘K,’ since there is only one ‘K’ tile per game.

For Star Trek fans, the final frontier doesn’t end once the credits roll on a new TV show or movie. The franchise extends way beyond that to include countless conventions, board games, video games, mountains of merchandise, and even a dating website specifically for Trekkies. And if you’re a real die-hard for Gene Roddenberry’s vision of the future, you can even learn Klingon—one of many fictional languages from the franchise, and by far its most fully-realized.

Now, the popular language-learning website Duolingo is helping people master the guttural beauty of Klingon with a free online course that is currently in a public beta. To start, you can choose to either learn some useful phrases or take an online placement test—though that’s recommended for people who already have some experience in Klingon. The course was crafted with the help of CBS—both Trek and the network are owned by Viacom—as well as “some of the world’s leading Klingon experts,” according to a quote from VentureBeat.

If you’re a novice, Duolingo will start you off with some tips on how the Klingon language works, including its alphabet, capitalization rules, and the fact that there’s really no word for “hello” (apparently, a Klingon won’t waste your time with silly trivialities like greetings).

In an interview with VentureBeat, course creator Felix Malmenbeck said there are only about 30 to 50 people who can actually converse in Klingon, though there are more who can communicate through text. But there’s a chance that number can shoot up with this new course, as Malmenbeck revealed that the site has gotten around 170,000 pre-registrations. This might seem like a lot for a fictional language, but just remember that the site’s course for High Valyrian, a fictional language from Game of Thrones, was viewed by 240,000 eager learners.

Klingon made its debut as a very basic language in 1979's Star Trek: The Motion Picture and was partly devised by actor James Doohan, who played Scotty. It was further fleshed out in 1984's Star Trek III: The Search for Spock, and it has since gotten its own dictionary by the linguist Marc Okrand, the man responsible for working on the official language for the movie.

Duolingo’s Klingon course is available now for free, and if you have a Duolingo Plus subscription, you can experience the whole thing without ads and use it while offline. Just remember, be careful who you say hab sosli' Quch* to. It may not end well.

*It means “Your mother has a smooth forehead.” Trust us, that’s as insulting as it gets.

William Shakespeare devised new words and countless plot tropes that still appear in everyday life. Famous quotes from his plays are easily recognizable; phrases like "To be or not to be," "wherefore art thou, Romeo," and "et tu, Brute?" instantly evoke images of wooden stages and Elizabethan costumes. But an incredible number of lines from his plays have become so ingrained into modern vernacular that we no longer recognize them as lines from plays at all. Here are 21 phrases you use but may not have known came from the Bard of Avon.

1. "WILD GOOSE CHASE" // ROMEO AND JULIET, ACT II, SCENE IV

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"Nay, if our wits run the wild-goose chase, I am done, for thou hast more of the wild-goose in one of thy wits than, I am sure, I have in my whole five. Was I with you there for the goose?" — Mercutio

"Be thou as chaste as ice, as pure as snow, thou shalt not escape calumny. Get thee to a nunnery, go." — Hamlet

"Lawn as white as driven snow." — Autolycus

Though Shakespeare never actually used the full phrase "pure as the driven snow," both parts of it appear in his work. For the record, this simile works best right after the snow falls, and not a few hours later when tires and footprints turn it into brown slush.

4. "SEEN BETTER DAYS" // AS YOU LIKE IT, ACT II, SCENE VII

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"True is it that we have seen better days and have with holy bell been knolled to church, and sat at good men's feasts and wiped our eyes of drops that sacred pity hath engendered." — Duke Senior

The first recorded use of "seen better days" actually appeared in Sir Thomas More in 1590, but the play was written anonymously, and is often at least partially attributed to Shakespeare. We do know Shakespeare was a fan of the phrase; he uses "seen better days" in As You Like It, and then again in Timon of Athens.

5. "OFF WITH HIS HEAD" // RICHARD III, ACT III, SCENE IV

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"If? Thou protector of this damnèd strumpet, talk'st thou to me of "ifs"? Thou art a traitor—Off with his head." — Richard III

The Queen of Hearts in Alice in Wonderland wasn't the first monarch with a penchant for liberating heads from bodies. Her famous catchphrase came from Shakespeare first.

6. "FOREVER AND A DAY" // AS YOU LIKE IT, ACT IV, SCENE I

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"Now tell me how long you would have her after you have possessed her." — Rosalind

"Forever and a day" — Orlando

We have the Bard to thank for this perfect fodder for Valentine's Day cards and middle school students' love songs.

7. "GOOD RIDDANCE" // TROILUS AND CRESSIDA, ACT II, SCENE I

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[Thersites exits]

"A good riddance." — Patroclus

Where would Green Day be without Shakespeare’s riposte? In addition to acoustic ballad titles, "good riddance" also applies well to exes, house pests (both human and insect), and in-laws.

8. "FAIR PLAY" // THE TEMPEST, ACT V, SCENE I

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"Yes, for a score of kingdoms you should wrangle, and I would call it fair play." — Miranda

Prospero's daughter never would have been able to predict that "fair play" is used more often now in sports than it is for the negotiation of kingdoms.

9. "LIE LOW" // MUCH ADO ABOUT NOTHING, ACT V, SCENE I

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"If he could right himself with quarreling, some of us would lie low." — Antonio

Shakespeare's plays contain brilliant wisdom that still applies today. In "lie low," he concocted the perfect two-word PR advice for every celebrity embroiled in a scandal.

10. "IT'S GREEK TO ME" // JULIUS CAESAR, ACT I, SCENE II

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"Nay, an I tell you that, Ill ne'er look you i' the face again: but those that understood him smiled at one another and shook their heads; but, for mine own part, it was Greek to me." — Casca

"It's all Greek to me” might possibly be the most intelligent way of telling someone that you have absolutely no idea what's going on.

“As good luck would have it, comes in one Mistress Page; gives intelligence of Ford's approach; and, in her invention and Ford's wife's distraction, they conveyed me into a buck-basket.” — Falstaff

Determining whether a Shakespeare play is a comedy or a tragedy can largely be boiled down to whether good luck would have anything for the characters.

12. "YOU'VE GOT TO BE CRUEL TO BE KIND" // HAMLET, ACT III, SCENE IV

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"So, again, good night. I must be cruel only to be kind. Thus bad begins and worse remains behind." — Hamlet

Here’s an idiom that proves just because a character in a Shakespeare play said it doesn't necessarily mean it's always true. Hamlet probably isn't the best role model, especially given the whole accidentally-stabbing-someone-behind-a-curtain thing.

13. "LOVE IS BLIND" // THE MERCHANT OF VENICE, ACT II, SCENE VI

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"But love is blind, and lovers cannot see the pretty follies that themselves commit, for if they could Cupid himself would blush to see me thus transformèd to a boy." — Jessica

Chaucer actually wrote the phrase ("For loue is blynd alday and may nat see") in The Merchant’s Tale in 1405, but it didn't become popular and wasn't seen in print again until Shakespeare wrote it down. Now, "love is blind" serves as the three-word explanation for any seemingly unlikely couple.

14. "BE-ALL, END-ALL" // MACBETH, ACT I, SCENE VII

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"If the assassination could trammel up the consequence, and catch with his surcease success; that but this blow might be the be-all and the end-all here, but here, upon this bank and shoal of time, we’d jump the life to come." — Macbeth

Macbeth uses the phrase just as he’s thinking about assassinating King Duncan and, ironically, as anyone who's familiar with the play knows, the assassination doesn't turn out to be the "end all" after all.

15. "BREAK THE ICE" // THE TAMING OF THE SHREW, ACT I, SCENE II

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"If it be so, sir, that you are the man must stead us all, and me amongst the rest, and if you break the ice and do this feat, achieve the elder, set the younger free for our access, whose hap shall be to have her will not so graceless be to be ingrate." — Tranio (as Lucentio)

If you want to really break the ice, the phrase appears to have come from Thomas North, whose translation of Plutarch's Lives of the Noble Grecians and Romans provided much of the inspiration for Shakespeare's ancient word plays. This is a great meta "did you know" fact for getting to know someone at speed dating.

16. "HEART OF GOLD" // HENRY V, ACT IV, SCENE I

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"The king's a bawcock, and a heart of gold, a lad of life, an imp of fame, of parents good, of fist most valiant." — Pistol

Turns out, the phrase "heart of gold" existed before Douglas Adams used it as the name of the first spaceship to use the Infinite Improbability Drive in The Hitchhiker’s Guide to the Galaxy.

17. "KILL WITH KINDNESS" // THE TAMING OF THE SHREW, ACT IV, SCENE 1

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"This is a way to kill a wife with kindness, and thus I'll curb her mad and headstrong humor." — Petruchio

The Shakespeare canon would contain a lot fewer dead bodies if his characters all believed they should kill their enemies with kindness instead of knives and poison.

18. "KNOCK, KNOCK! WHO'S THERE?" // MACBETH, ACT II, SCENE III

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"Knock, knock! Who's there, in th' other devil’s name?" — Porter

Though high school students suffering through English class may disagree, Shakespeare was a master of humor in his works, writing both slapstick comedy and sophisticated wordplay. And, as the Porter scene in Macbeth illustrates, he's also the father of the knock-knock joke.

19. "LIVE LONG DAY" // JULIUS CAESAR, ACT I, SCENE I

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"To towers and windows, yea, to chimney tops, your infants in your arms, and there have sat the livelong day with patient expectation to see great Pompey pass the streets of Rome." — Mureless

Today, the phrase "live long day" is pretty much exclusively reserved for those who have been working on the railroad.

20. "YOU CAN HAVE TOO MUCH OF A GOOD THING" // AS YOU LIKE IT, ACT IV, SCENE I

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"Why then, can one desire too much of a good thing?— Come, sister, you shall be the priest and marry us.—Give me your hand, Orlando.—What do you say, sister?" — Rosalind

Modern readers often call Shakespeare a visionary, far ahead of his time. For example: he was able to write about desiring too much of a good thing 400 years before chocolate-hazelnut spread was widely available.

21. "THE GAME IS AFOOT" // HENRY V, ACT III, SCENE I

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"The game's afoot: follow your spirit, and upon this charge cry 'God for Harry, England, and Saint George!'" — King Henry V

Nope! It wasn't Sir Arthur Conan Doyle who coined this phrase—Sherlock Holmes' most famous catchphrase comes from Henry V, although both characters do often tend to find themselves around dead bodies.